#define DHT_PIN 2
#define DHT_TYPE DHT22

#include <DHT.h>

DHT dht(DHT_PIN, DHT_TYPE);

const int numReadings = 10;
float temperatureReadings[numReadings];
float humidityReadings[numReadings];
int currentIndex = 0;

void setup() {
  Serial.begin(9600);
  dht.begin();
}

void loop() {
  // Membaca sensor kerja
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  // 
  if (isnan(temperature) || isnan(humidity)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // 
  temperatureReadings[currentIndex] = temperature;
  humidityReadings[currentIndex] = humidity;

  //
  currentIndex = (currentIndex + 1) % numReadings;

  // Menghitung Filter Moving Average
  float temperatureAvg = 0;
  float humidityAvg = 0;
  for (int i = 0; i < numReadings; i++) {
    temperatureAvg += temperatureReadings[i];
    humidityAvg += humidityReadings[i];
  }
  temperatureAvg /= numReadings;
  humidityAvg /= numReadings;

  // Print data to Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print("°C, Humidity: ");
  Serial.print(humidity);
  Serial.println("%");

  // Plot moving averages on Serial Plotter
  Serial.print("Moving Avg Temp: ");
  Serial.print(temperatureAvg);
  Serial.print("°C, Moving Avg Humidity: ");
  Serial.print(humidityAvg);
  Serial.println("%");

  
  delay(1000);  // Delay
}